13 × 16561

Prime Factor Structure

Factorization String 13 × 16561

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 231,868

Proper Divisor Sum 16,575

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #215279 ← → #215297

1 13 16,561 215,293

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

215,293 645,880 322,940 161,470 80,735 242,206 121,103 363,310 181,655 544,966 272,483 817,450 408,725 1,226,176 613,088 306,544 153,272 76,636 38,318 19,159 57,478 28,739 86,218 43,109 129,328 64,664 32,332 16,166 8,083 24,250 12,125 36,376 18,188 9,094 4,547 13,642 6,821 20,464 10,232 5,116 2,558 1,279 3,838 1,919 5,758 2,879 8,638 4,319 12,958 6,479 19,438 9,719 29,158 14,579 43,738 21,869 65,608 32,804 16,402 8,201

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.